Colorado’s largest charter school for gifted and talented students has been hit with eight civil rights complaints in two years. But administrators at Stargate Charter School, in Thornton, say they have learned their lesson and are making changes to better address allegations of sexual harassment and discrimination against disabled students. The complaints include the school’s mishandling of allegations that a former coach groped students and the school’s treatment of students with disabilities. The school has followed steps laid out by the U.S.